In Vitro α-Amylase and α-Glucosidase Inhibitory and Antioxidant Activities of the Crude Extract and Solvent Fractions of Hagenia abyssinica Leaves

Table 4

Antioxidant activities of the crude extract and solvent fractions.

Concentration	Percentage (%) inhibition
	Chloroform fraction	Ethyl acetate fraction	Water fraction	Crude extract	Ascorbic acid
15.6 μg/ml
31.3 μg/ml
62.5 μg/ml
125.0 μg/ml
250.0 μg/ml
500.0 μg/ml
IC50 μg/ml

Note: each value of percent inhibition of DPPH is presented as (). Abbreviations: SEM: standard error of mean; DPPH: 2,2-diphenyl-1-picrylhydrazine; IC₅₀: half-maximal inhibitory concentration.